Gas-lamp.



A. C. NOAD.

GAS LAMP.

APPLICATION FILED MAY Z8, 190B.

Patented A131127, 1909.

1HE :mums PETERS ca, wAsHlNcroN, D. r:A

AUNITED STATES PATENT OFFICE.

ARTHUR CUMMING NOAD, OF LONDON, ENGLAND, ASSIGNOR TO CLARK WAY HARRISON, OF

` LONDON, ENGLAND.

GAS-LAMP.

Srpecicaton of Letters Patent.

Patented April 27, 1909.

gas expert, have invented certain new and useful Improvements in and Relating to Gas- Lamps, of which the following is a speciiication.

The object of my invention is to expand and heat the gas during its passage down the gas supplypipe to the burner or burners, and also to catch or trap, any products of condensation or sedimentary matter in the gas so that they can be easily removed, which otherwise would descend and. clog the gas cock or fittings.

Referring to the drawings, Figure l is an elevation of anV ordinary incandescent gas lamp showing my invention applied to it. Fig. 2 isa plan of the same on line XX.

Referring to the drawings, Imake the gas supply pipe discontinuous, preferably by forming it m two parts, A and A1, and I connect them by means of several tubes, B, each being preferably of a smaller diameter than the gas supply pipe A, but collectively of a larger area, so that the gas, on leaving the gas supply pipe A, and passing through the tubes B, to the lower part of the supply pipe A1, is vheated and expands, the tubes being arranged within the heated zone over the burners, C as shown inthe drawings. I connect the tubes B to the uppergas supply pipe A, by means of a specially shaped connecting piece D which I make to project below the gas outlet E, to the tubes B, so as to form a cavity F at the bottom of this cavity, I arrange a removable screw plug G, which can be removedfto clean out any sedimentary matter or products of condensation which may lodge above it.

What I claim and desire to secure by Letters Patent of the United States is 1. In an incandescent gas burner, a plurality of burners, a supply pipe in communication with the burners, branch tubes leading from the supply pipe and arranged above the burners within the heated zone to heat the gas and to allow the latter to expand while being heated, and a sediment trap acting as a connecting piece to join the said branch tubes to the supply ipe.

2. In an incandescent gas iamp, a plurality ofburners, Aa dividedsupply pipe made up of two lengths one of which communicates with the burnersand the other with the main, branch tubes connecting the two lengths of the supply pipe and arranged above the burners within the heated zone to heat the gas and to allow the latter to expand while beingheated, and a sediment trap acting as a connecting piece to join the said branch tubes to the supply pipe.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses this 18th day of May 1906.

ARTHUR OU MMING NOAD.

I/Vitnesses:

FRANCIS W. BARRAOLOUGH, T.SELBY WARDLE. 

